Hierarchy/Derived subclasses
D14 / 300 | -> 301 | -> 308 | -> 311 |
uspto searches
Patent Apps in D14/311Granted Patents in D14/311
Use the links above or do an advanced search in ppubs for:
(D14/311.ccls.)
This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.